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An electrochemical thermal transistor

Author

Listed:
  • Aditya Sood

    (Stanford University
    Stanford University)

  • Feng Xiong

    (Stanford University
    Stanford University
    University of Pittsburgh)

  • Shunda Chen

    (University of California)

  • Haotian Wang

    (Stanford University
    Rice University)

  • Daniele Selli

    (Max Planck Institute for Polymer Research
    Universita di Milano-Bicocca)

  • Jinsong Zhang

    (Stanford University)

  • Connor J. McClellan

    (Stanford University)

  • Jie Sun

    (Stanford University
    Tianjin University)

  • Davide Donadio

    (University of California
    Ikerbasque, Basque Foundation for Science)

  • Yi Cui

    (Stanford University
    SLAC National Accelerator Laboratory)

  • Eric Pop

    (Stanford University
    Stanford University
    Stanford University)

  • Kenneth E. Goodson

    (Stanford University
    Stanford University)

Abstract

The ability to actively regulate heat flow at the nanoscale could be a game changer for applications in thermal management and energy harvesting. Such a breakthrough could also enable the control of heat flow using thermal circuits, in a manner analogous to electronic circuits. Here we demonstrate switchable thermal transistors with an order of magnitude thermal on/off ratio, based on reversible electrochemical lithium intercalation in MoS2 thin films. We use spatially-resolved time-domain thermoreflectance to map the lithium ion distribution during device operation, and atomic force microscopy to show that the lithiated state correlates with increased thickness and surface roughness. First principles calculations reveal that the thermal conductance modulation is due to phonon scattering by lithium rattler modes, c-axis strain, and stacking disorder. This study lays the foundation for electrochemically-driven nanoscale thermal regulators, and establishes thermal metrology as a useful probe of spatio-temporal intercalant dynamics in nanomaterials.

Suggested Citation

  • Aditya Sood & Feng Xiong & Shunda Chen & Haotian Wang & Daniele Selli & Jinsong Zhang & Connor J. McClellan & Jie Sun & Davide Donadio & Yi Cui & Eric Pop & Kenneth E. Goodson, 2018. "An electrochemical thermal transistor," Nature Communications, Nature, vol. 9(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-06760-7
    DOI: 10.1038/s41467-018-06760-7
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    Cited by:

    1. Zhang, Yanchao & Su, Shanhe, 2021. "Thermal rectification and negative differential thermal conductance based on a parallel-coupled double quantum-dot," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 584(C).
    2. Lorenzo Castelli & Qing Zhu & Trevor J. Shimokusu & Geoff Wehmeyer, 2023. "A three-terminal magnetic thermal transistor," Nature Communications, Nature, vol. 14(1), pages 1-14, December.

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